Yes but even if the halved costs are production costs, without materials, they are essentially investment in robots/machinery and labour. I don't think that mu

Yes but even if the halved costs are production costs, without materials, they are essentially investment in robots/machinery and labour. I don't think that much can be saved on robots/machinery, so it must be largely labour, and to cut down those costs by 50%, of even 40%, seems to me like very improbable. About the footprint, it could be reasonable and actually feasible, but that could be a great thing from some viewpoints (less visual impact of the factory on the territory or possibility to build a new factory on an area too small for a traditional plant ), but it doesn't sound like it could lead to relevant savings, the costs of actual land area and buildings should be a minimal percentage of the production costs.